Anchor mechanism.



C. A. WAITZ..

ANCHOR MECHANISM.

armcmou FILED MAY 4. um.

Patented Mar. 12, 1918.

mmeas- To all whom it may concern: a it Be it known that I, G ARLns iajcitizen of the United States, residing at fR'ouseville, in the countyof Venarigopand 1 i a enemies A. WAITZ, or no sEvILnE, PEnnsYLvanIA. 1

Auct on lrncnaivismi State} otPennsylvania, have invented new l andi-iiseful 1 Improvements in "Anchor Mechanisms, of which the followingis a specifi cation! r I 1 i 3 Q This inventionfrelates to anchormechainthe construction thereof as will be here-- inafter fullydescribed and pointed out in nisms and consists in certain improvements1 In order to'shoot a well it has been oustomary to place ananchor inthe well ad3acent to theposition that it is desired to have the torpedoexplode. Devices of this character have been formed so that they mightbe lowered into the well and the anchor disengaged from the line withwhich it is loweredflandtripped soas toengage the side Straub #615,321,dated Dec. 898; In the use of the anchor shownin Straub patent it a hasbeen customary to locate the torpedo by some support extend distancedropped in this manner so that the operation has required thelowering ofthe an chor,the droppingof the weight torelease it, the removal oftheiline and then the measuring of the position of the anchor, and thefillingin of the support so as to sustain the torpedo at theusualheight.

With the present invention the anchor;

" is -released by means acting through the line a j Wltll which ais'lowered. In the exemplifica- 1.

tion of theinvention asshown this is accomplished by manipulating theline. This does I away with the double operation in that themeasuringline may be used for lowering the anchor and the anchorcan beaccurately placed and measured by a'single operation.

The invention is illustrated in the accompanying drawmgs as follows:

s Figure 1 is a verticalcentral section of a the device.

a Fig. 2 a section on the 1ine 2-2 in Fig.1.

1-1 marks the" expanding members of the Specification of Letters Patent.Application filed May 4, 1917-. Serial No. 166,494.

Patented ar; 12,1918,

anchor, 2 the top plate, S'the hinge between the topplates, 4: theengaging pointslof the members 1 -1, 5 studs arranged on the insides ofthe members 11, 6 springs arranged onthe studs 5, 'Z-Zshoulders on thebottom of the members 1 -1, these shoulders being slightly undercutandformed by per- .forations in the bottom, and 8 a trigger by which themembers are locked in closed position, the trigger having the shoulders99 operating in connection with the shoulders 77. In a general way theseparts are similar to the parts shown in the Straub patent" and operatein the manner therein described;

A pocket 10 is arranged in the members 1lat their meeting edges, thepockets havingthe lips'llw A releasingpin 12 has the shoulder 18 whichis arranged in the pocket 10 and engages the lips 11. When the mem bers1l are'in their closed position the'pin 12, therefore, will support theanchor. The

pin 12 extends throughf-anbpening 14 in the top 2.and terminates inahead 15.

" A link l6is arranged between the head 15' and a spring 17. The spring17 is arranged in a weightls, the weight being in the 'form of a pipesurrounding the spring. A snapl9is secured to the upper end ofthespring, the upper end ,of the spring extending through a cap 20 onthe top of theweight 18 1so that theweight 18 is carried in thismanner.. A measuring line 21, having the graduations 22 is secured tothe snap.

; The operation of the device is as follows The members 1,1 areclosed.NVith the pin 12in place the members are locked in this closed positionby the'trigger 8. The meas- V uring line 21 is hooked on to. the upperend of the mechanism and the anchor is then lowered into the well to theposition desired. Theline is then given ashort, quick upward movementand suddenly released. Asa result the spring 17is first-expanded and asthe line is released the recoil of the spring brings the weight down onthe pin and this blow acting on the pin forces the trigger ofi? thebottom of the "anchor, thus releasing the anchor members .l1. Theseanchor membersare immediately expanded bringing the points 4-4 intoengagement with the side walls ofthe opening and positively locking theanchor in place in the well. This same opening of the members 1-lreleases the pin 12 as the lips 11 -11 pass oil the shoulder 13.

After the disengagement of'the' anchor,

